The wind was terrible. Unlike the rain at W&D, where you couldn't get any more wet after a certain point, the wind was strong and kept having gusts to randomly make it worse. Mentally, this race was a lot harder than W&D; it may have been tougher physically too since we were running straight into a headwind from about mile 4 until mile 8, and had crosswinds to deal with from there to the finish (oddly, the first few miles were fine for me)
The course was...different. I didn't enjoy how little time was spent in the parks, but I understand why they did it to incorporate the Crystal Cathedral (where I was expecting some sort of cheer station, but saw nothing) and Angel Stadium (which only had 2 marching bands, rather than all the scouts from DL1/2). It was a lot of running past budget motels and generic office parks; certainly not as "ugly" as DL1/2's course, but not particularly inspiring either
The part on the trail was definitely the worst part. There were almost no spectators (other than a neat cosplay cheer station near the beginning) and the scenery was bleak. We were heading right into the wind and there was a ton of dust, debris, and garbage flying around. I'm still coughing up dirt today. This was also where I really started to notice that almost every mile marker was blown over or in the wrong place.
On a side note, they attempted to introduce a backstory for the 5K, which was kind of fun. Basically it was the Hulk story, and we were all being exposed to radiation by some evil villain and the only cure was to make it to the finish to get our medals with a special serum in them. The only problem was the way it was phrased was along the lines of "the runners are the target of this attack", which I felt was in poor taste in light of the Boston bombings. They obviously meant it to be fun and didn't mean anything by it, but it just felt a little insensitive
Had it not been for the wind, I would probably have a different opinion, but overall I was non-plussed by the race; it wasn't bad, but it just wasn't quite a 'great' event. I'm also not a huge Marvel/comic person, so I didn't really understand a lot of the references, which I'm sure impacted my enjoyment. My real reason for making the trip to CA was to see the production of Hunchback in La Jolla and that exceeded my (very high) expectations, so it wasn't a total loss